摘要
时隔20年,再次测定了荆门地区的玉米象、谷蠹、赤拟谷盗、锈赤扁谷盗四种主要储粮害虫对磷化氢的抗性,测定结果表明:荆门地区的上述储粮虫种均产生了不同程度的抗性,抗性品种已达100%;抗性系数均较1991年有大幅上升。通过分析比较这几种储粮害虫近20年的抗性发展情况,探讨了储粮害虫抗性产生的原因和延缓抗性发展的相应对策,为科学指导今后对储粮害虫的有效防治提供了一定的参考依据。
The resistance of four kinds of stored grain insect pests,such as Sitophilus zeamais Motschulsky,Rhizopertha dominica（Fabricius）,Tribolium castaneum（Herbst）,Cryptolestes ferrugineus（Stephens）,has been determined again after 20 years.The results showed that these stored insects have developed the resistance in different extent in Jingmen area,where the resistant varieties have reached 100%,and the resistant coefficient has soared since 1991.By contrasting and analyzing the development of the resistance of these stored grain insects for nearly 20 years,it discussed the reason why stored grain insects developed and the strategy to postpone the resistance developing,provided reference for stored grain insects control in future.
出处
《粮食储藏》
2011年第4期6-9,共4页
Grain Storage
关键词
磷化氢
抗药性
储粮害虫
抗性系数
phosphine
resistance
stored grain insects
resistant coefficient
